Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Analysis of ITX from Commercial Carton Packs in Korean Market

국내 유통 종이팩 포장재 중 Isopropylthioxanthone(ITX) 분석

  • Eom, Mi-Ok (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Yoon, Hae-Jung (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Choi, Hyun-Cheol (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Jeon, Dae-Hoon (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Kim, Hyung-Il (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Sung, Jun-Hyun (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Park, Na-Young (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Lee, Eun-Joon (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Sung, Duk-Hwa (Center for Food Evaluation, Korea Food and Drug Administration) ;
  • Lee, Young-Ja (Center for Food Evaluation, Korea Food and Drug Administration)
  • 엄미옥 (식품의약품안전청 식품본부) ;
  • 윤혜정 (식품의약품안전청 식품본부) ;
  • 최현철 (식품의약품안전청 식품본부) ;
  • 전대훈 (식품의약품안전청 식품본부) ;
  • 김형일 (식품의약품안전청 식품본부) ;
  • 성준현 (식품의약품안전청 식품본부) ;
  • 박나영 (식품의약품안전청 식품본부) ;
  • 이은준 (식품의약품안전청 식품본부) ;
  • 성덕화 (식품의약품안전청 식품본부) ;
  • 이영자 (식품의약품안전청 식품본부)
  • Published : 2007.06.30
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Abstract

Isopropylthioxanthone(ITX) is used as a photoinitiator In UV-cured inks, triggering the radical polymerization of the acrylic component of such inks and thus causing the liquid ink film to cure. Recently ITX was detected in carton packed food in Italy. In order to cope with risk issues of overseas and acquire monitoring data on ITX, we have established the method using HPLC/FLD for ITX analysis after reviewing parameters of the analytical methods. Limit of detection (LOD) and limit of quantification (LOQ) were 0.02 ppb and 0.1 ppb, and linearity and RSD (%) were 0.9991 and 1.09, respectively. We have investigated ITX levels migrated to food on 87 commercial products packed in carton and ITX was not detected any food. Therefore it is supposed that UV-cured ink containing ITX as photoinitiator is not currently used in printing of carton pack in Korea.

식품용 종이포장재 등에 사용될 수 있는 UV 잉크 인쇄방식에는 광개시제를 이용한 경화방식 또는 전자빔을 이용한 경화방식이 주로 사용된다. 최근 유럽에서 종이팩 포장재의 광개시제로 사용될 수 있는 Isopropylthioxanthone (ITX)에 대한 검출사례가 보고 된 바 있으나, 국내에서는 종이팩 포장재 중 ITX에 대한 모니터링연구가 전무한 상태이므로 제외국 연구동향에 신속히 대응할 수 있는 ITX 분석방법을 확립하고, 확립된 분석방법을 적용하여 국내 유통 종이팩으로 포장된 식품 중 ITX 잔류량에 관한 모니터링을 실시하였다. HPLC/FLD를 이용한 ITX의 분석방법을 확립하였으며, 이때 확립된 분석방법에 대한 상대표준편차 1.09% 이내의 재현성, 상관계수 0.9991 이상의 직선성, 검출한계 0.02 ppb 및 정량한계는 0.1 ppb였다. 또한, 확립된 분석방법을 적용하여 국내 유통 중인 우유, 주스 등 종이팩으로 포장된 제품 87종을 대상으로 ITX 잔류량을 모니터링 한 결과, 모든 식품에서 ITX는 검출되지 않았다.

Keywords

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